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1. 发明授权

US06765452B2 Method and apparatus for damping an LC filter 有权
标题翻译：用于阻尼LC滤波器的方法和装置
公开(公告)号：US06765452B2
公开(公告)日：2004-07-20
申请号：US10212390
申请日：2002-08-06
申请人： Xiaoming Yuan , Fei Wang , Richard S. Zhang
发明人： Xiaoming Yuan , Fei Wang , Richard S. Zhang
IPC分类号： H03G1104
CPC分类号： H02M1/12 , H02M7/53871
摘要： A method for damping an LC filter coupled to a converter and generating a filter signal. The method comprises sensing the filter signal and processing the filter signal to generate a corresponding feedback signal. The feedback signal is subtracted from a controller signal to generate a difference signal. The difference signal is used for damping the LC filter.
摘要翻译：一种用于阻尼耦合到转换器并产生滤波器信号的LC滤波器的方法。该方法包括感测滤波器信号并处理滤波器信号以产生相应的反馈信号。从控制器信号中减去反馈信号以产生差分信号。差分信号用于阻尼LC滤波器。

2. 发明授权

US06917271B2 Cross current control for power converter systems and integrated magnetic choke assembly 有权
标题翻译：电力转换器系统和集成式磁阻组件的交流电流控制
公开(公告)号：US06917271B2
公开(公告)日：2005-07-12
申请号：US10727390
申请日：2003-12-03
申请人： Richard S. Zhang , James Patrick Lyons , Luis Jose Garces , Xiaoming Yuan
发明人： Richard S. Zhang , James Patrick Lyons , Luis Jose Garces , Xiaoming Yuan
IPC分类号： H02M5/45 , H02M7/217 , H02M7/48 , H02M7/493 , H01F27/34
CPC分类号： H02M7/493 , H01F37/00 , H02M5/45 , H02M7/217
摘要： A cross current control system for multiple, parallel-coupled power converters includes common mode chokes, local cross current feedback controllers, and local converter controllers. Each common mode choke is coupled to a respective power converter. Each local cross current feedback controller is configured for receiving common mode cross currents from a respective local cross current detector, calculating a resultant cross current, and generating a local feedback control signal. Each local converter controller is configured for using a respective local feedback control signal to drive the respective power converter in accordance with a coordinated switching pattern. An integral choke assembly includes a common mode choke and a differential mode choke with common and differential mode choke cores configured with at least one magnetic flux path being shared by magnetic flux generated by common mode coils and differential mode coils.
摘要翻译：用于多个并联耦合的功率转换器的交叉电流控制系统包括共模扼流圈，局部交叉电流反馈控制器和本地转换器控制器。每个共模扼流圈耦合到相应的功率转换器。每个局部交叉电流反馈控制器被配置为从相应的局部交叉电流检测器接收共模交叉电流，计算合成的交叉电流以及产生局部反馈控制信号。每个本地转换器控制器被配置为使用相应的本地反馈控制信号来根据协调的切换模式来驱动相应的功率转换器。整体式扼流圈组件包括共模扼流圈和具有公共和差模扼流圈的差模扼流圈，其配置有由共模线圈和差模线圈产生的磁通共享的至少一个磁通路径。

3. 发明申请

US20100156192A1 ELECTRICAL SYSTEM AND CONTROL METHOD 有权
标题翻译：电气系统与控制方法
公开(公告)号：US20100156192A1
公开(公告)日：2010-06-24
申请号：US12341862
申请日：2008-12-22
申请人： Changyong Wang , Zhuohui Tan , Robert William Delmerico , Allen Michael Ritter , Ralph Teichmann , Richard S. Zhang , Robert Allen Seymour , Xiaoming Yuan
发明人： Changyong Wang , Zhuohui Tan , Robert William Delmerico , Allen Michael Ritter , Ralph Teichmann , Richard S. Zhang , Robert Allen Seymour , Xiaoming Yuan
IPC分类号： H02M7/48
CPC分类号： H02M7/53871 , H02J3/01 , H02J3/40 , Y02E40/40 , Y10T307/707
摘要： A power generation system comprises at least two electrical systems connected at an electrical connection point. Each electrical system comprises a power conversion system comprising a converter including a plurality of switches for converting direct current power into alternating current power. The power generation system comprises a control system including at least two pulse width modulation (PWM) modulators, each PWM modulator for obtaining a fundamental waveform and a carrier signal, using the fundamental and carrier signals to generate a PWM pattern, and for providing the PWM pattern to a respective converter for driving the switches of the respective converter. The control system is configured to interleave carrier signals, fundamental waveforms, or a combination of carrier signals and fundamental waveforms of the at least two electrical systems to generate interleaved PWM patterns respectively for the at least two converters.
摘要翻译：发电系统包括在电连接点处连接的至少两个电气系统。每个电气系统包括电力转换系统，其包括转换器，该转换器包括用于将直流电力转换为交流电力的多个开关。发电系统包括一个包括至少两个脉冲宽度调制（PWM）调制器的控制系统，每个PWM调制器用于获得基波和载波信号，使用基波和载波信号产生PWM模式，并提供PWM 模式到用于驱动各个转换器的开关的相应转换器。控制系统被配置为交替载波信号，基波或者载波信号和至少两个电气系统的基波形的组合，以分别为至少两个转换器产生交错PWM模式。

4. 发明申请

US20110260547A1 ELECTRICAL SYSTEM AND CONTROL METHOD 有权
标题翻译：电气系统与控制方法
公开(公告)号：US20110260547A1
公开(公告)日：2011-10-27
申请号：US13178800
申请日：2011-07-08
申请人： Changyong Wang , Zhuohui Tan , Robert William Delmerico , Allen Michael Ritter , Ralph Teichmann , Richard S. Zhang , Robert Allen Seymour , Xiaoming Yuan
发明人： Changyong Wang , Zhuohui Tan , Robert William Delmerico , Allen Michael Ritter , Ralph Teichmann , Richard S. Zhang , Robert Allen Seymour , Xiaoming Yuan
IPC分类号： H02J5/00
CPC分类号： H02M7/53871 , H02J3/01 , H02J3/40 , Y02E40/40 , Y10T307/707
摘要： A method of controlling electrical power systems coupled to an electrical connection point includes obtaining carrier signals and fundamental waveforms from electrical power systems coupled to at least two renewable energy sources, generating pulse width modulation (PWM) signals using the carrier signals and the fundamental waveforms while interleaving carrier signals, fundamental waveforms, or a combination of carrier signals and fundamental waveforms of the electrical power systems, and driving grid side converters of the electrical power systems with the PWM signals.
摘要翻译：控制耦合到电连接点的电力系统的方法包括从耦合到至少两个可再生能源的电力系统获得载波信号和基本波形，使用载波信号和基波形成脉冲宽度调制（PWM）信号，同时交织载波信号，基波，或电力系统的载波信号和基波的组合，以及利用PWM信号驱动电力系统的电网侧转换器。

5. 发明授权

US06751106B2 Cross current control for power converter systems and integrated magnetic choke assembly 有权
公开(公告)号：US06751106B2
公开(公告)日：2004-06-15
申请号：US10064547
申请日：2002-07-25
申请人： Richard S. Zhang , James Patrick Lyons , Luis Jose Garces , Xiaoming Yuan
发明人： Richard S. Zhang , James Patrick Lyons , Luis Jose Garces , Xiaoming Yuan
IPC分类号： H02M700
CPC分类号： H02M7/493 , H01F37/00 , H02M5/45 , H02M7/217
摘要： A cross current control system for multiple, parallel-coupled power converters includes common mode chokes, local cross current feedback controllers, and local converter controllers. Each common mode choke is coupled to a respective power converter. Each local cross current feedback controller is configured for receiving common mode cross currents from a respective local cross current detector, calculating a resultant cross current, and generating a local feedback control signal. Each local converter controller is configured for using a respective local feedback control signal to drive the respective power converter in accordance with a coordinated switching pattern. An integral choke assembly includes a common mode choke and a differential mode choke with common and differential mode choke cores configured with at least one magnetic flux path being shared by magnetic flux generated by common mode coils and differential mode coils.

6. 发明授权

US08319374B2 Electrical system and control method 有权
标题翻译：电气系统及控制方法
公开(公告)号：US08319374B2
公开(公告)日：2012-11-27
申请号：US13178800
申请日：2011-07-08
申请人： Changyong Wang , Zhuohui Tan , Robert William Delmerico , Allen Michael Ritter , Ralph Teichmann , Richard S. Zhang , Robert Allen Seymour , Xiaoming Yuan
发明人： Changyong Wang , Zhuohui Tan , Robert William Delmerico , Allen Michael Ritter , Ralph Teichmann , Richard S. Zhang , Robert Allen Seymour , Xiaoming Yuan
IPC分类号： H02J1/00
CPC分类号： H02M7/53871 , H02J3/01 , H02J3/40 , Y02E40/40 , Y10T307/707
摘要： A method of controlling electrical power systems coupled to an electrical connection point includes obtaining carrier signals and fundamental waveforms from electrical power systems coupled to at least two renewable energy sources, generating pulse width modulation (PWM) signals using the carrier signals and the fundamental waveforms while interleaving carrier signals, fundamental waveforms, or a combination of carrier signals and fundamental waveforms of the electrical power systems, and driving grid side converters of the electrical power systems with the PWM signals.
摘要翻译：控制耦合到电连接点的电力系统的方法包括从耦合到至少两个可再生能源的电力系统获得载波信号和基本波形，使用载波信号和基波形成脉冲宽度调制（PWM）信号，同时交织载波信号，基波，或电力系统的载波信号和基波的组合，以及利用PWM信号驱动电力系统的电网侧转换器。

7. 发明授权

US07999418B2 Electrical system and control method 有权
标题翻译：电气系统及控制方法
公开(公告)号：US07999418B2
公开(公告)日：2011-08-16
申请号：US12341862
申请日：2008-12-22
申请人： Changyong Wang , Zhuohui Tan , Robert William Delmerico , Allen Michael Ritter , Ralph Teichmann , Richard S. Zhang , Robert Allen Seymour , Xiaoming Yuan
发明人： Changyong Wang , Zhuohui Tan , Robert William Delmerico , Allen Michael Ritter , Ralph Teichmann , Richard S. Zhang , Robert Allen Seymour , Xiaoming Yuan
IPC分类号： G01R19/12
CPC分类号： H02M7/53871 , H02J3/01 , H02J3/40 , Y02E40/40 , Y10T307/707
摘要： A power generation system comprises at least two electrical systems connected at an electrical connection point. Each electrical system comprises a power conversion system comprising a converter including a plurality of switches for converting direct current power into alternating current power. The power generation system comprises a control system including at least two pulse width modulation (PWM) modulators, each PWM modulator for obtaining a fundamental waveform and a carrier signal, using the fundamental and carrier signals to generate a PWM pattern, and for providing the PWM pattern to a respective converter for driving the switches of the respective converter. The control system is configured to interleave carrier signals, fundamental waveforms, or a combination of carrier signals and fundamental waveforms of the at least two electrical systems to generate interleaved PWM patterns respectively for the at least two converters.
摘要翻译：发电系统包括在电连接点处连接的至少两个电气系统。每个电气系统包括电力转换系统，其包括转换器，该转换器包括用于将直流电力转换为交流电力的多个开关。发电系统包括一个包括至少两个脉冲宽度调制（PWM）调制器的控制系统，每个PWM调制器用于获得基波和载波信号，使用基波和载波信号产生PWM模式，并提供PWM 模式到用于驱动各个转换器的开关的相应转换器。控制系统被配置为交替载波信号，基波或者载波信号和至少两个电气系统的基波形的组合，以分别为至少两个转换器产生交错PWM模式。

8. 发明授权

US08295063B2 System and method for damping LC circuits in power conversion systems 有权
标题翻译：用于阻尼功率转换系统LC电路的系统和方法
公开(公告)号：US08295063B2
公开(公告)日：2012-10-23
申请号：US13080321
申请日：2011-04-05
申请人： Maozhong Gong , Zhuohui Tan , Xiaoming Yuan , Xueqin Wu
发明人： Maozhong Gong , Zhuohui Tan , Xiaoming Yuan , Xueqin Wu
IPC分类号： H02M1/12 , H02M1/14
CPC分类号： H02M7/48 , H02J3/383 , H02J3/386 , H02M1/12 , Y02E10/563 , Y02E10/763
摘要： A power conversion system comprises a power converter comprising a plurality of semiconductor power switches, an LC filter coupled between an output of the power converter and an electric grid, and a power conversion control system. The LC filter comprises an inductor coupled in series to the electric grid, and a capacitor. The LC filter and the grid result in an equivalent LC circuit comprising an impedance of the LC filter and an impedance of the electric grid. The power conversion control system comprises a damper and a converter controller. The damper receives an LC filter signal and an equivalent LC circuit impedance signal and generates a damping signal. The converter controller receives a current or voltage reference signal, a current or voltage command signal, and the damping signal to generate control signals for driving switching operations of the semiconductor power switches.
摘要翻译：电力转换系统包括功率转换器，其包括多个半导体功率开关，耦合在功率转换器的输出和电网之间的LC滤波器和电力转换控制系统。 LC滤波器包括与电网串联耦合的电感器和电容器。 LC滤波器和电网产生包括LC滤波器的阻抗和电网的阻抗的等效LC电路。电力转换控制系统包括阻尼器和转换器控制器。阻尼器接收LC滤波器信号和等效LC电路阻抗信号并产生阻尼信号。转换器控制器接收电流或电压参考信号，电流或电压指令信号和阻尼信号，以产生用于驱动半导体功率开关的开关操作的控制信号。

9. 发明授权

US07982326B2 System and method for controlling torque ripples in synchronous machines 有权
标题翻译：控制同步电机转矩波动的系统和方法
公开(公告)号：US07982326B2
公开(公告)日：2011-07-19
申请号：US12899918
申请日：2010-10-07
申请人： Zhuohui Tan , Xiaoming Yuan , Changyong Wang , Ronghai Qu , Robert William Delmerico , Patrick Lee Jansen
发明人： Zhuohui Tan , Xiaoming Yuan , Changyong Wang , Ronghai Qu , Robert William Delmerico , Patrick Lee Jansen
IPC分类号： F03D9/00
CPC分类号： H02P6/183 , H02P9/42 , H02P21/22 , H02P29/50 , H02P2101/15
摘要： A system for controlling torque ripple in a permanent magnet synchronous machine includes a power converter configured to be coupled to the permanent magnet synchronous machine and to receive converter control signals and a system controller coupled to the power converter. The system controller includes a fundamental current controller configured for providing fundamental voltage commands, a harmonic current controller configured for using harmonic current commands, current feedback signals from the permanent magnet machine, and fundamental current commands in combination with positive and negative sequence regulators to obtain harmonic voltage commands, and summation elements configured for adding the fundamental voltage commands and the harmonic voltage commands to obtain the converter control signals.
摘要翻译：一种用于控制永磁同步电机中的转矩脉动的系统，包括配置为耦合到永磁同步电机并接收转换器控制信号的电力转换器和耦合到功率转换器的系统控制器。系统控制器包括配置用于提供基本电压命令的基波电流控制器，配置为使用谐波电流指令的谐波电流控制器，来自永磁电机的电流反馈信号以及与正序和负序调节器组合的基波电流命令以获得谐波电压指令以及被配置用于增加基本电压指令和谐波电压指令以获得转换器控制信号的求和元件。

10. 发明授权

US07928780B1 Phase-locked-loop circuit 有权
标题翻译：锁相环电路
公开(公告)号：US07928780B1
公开(公告)日：2011-04-19
申请号：US12569119
申请日：2009-09-29
申请人： Xiaoming Yuan , Zhuohui Tan , Robert William Delmerico , Haiqing Weng , Robert Allen Seymour
发明人： Xiaoming Yuan , Zhuohui Tan , Robert William Delmerico , Haiqing Weng , Robert Allen Seymour
IPC分类号： H03B21/00 , H03L7/06
CPC分类号： H03L7/085 , H02J3/40
摘要： A phase-locked loop circuit comprises a phase error detector for receiving a multi-phase reference signal and a synchronized phase signal of the phase-locked-loop circuit, and for performing a rotational transformation to convert the multi-phase reference signal into two-phase quantities at a synchronous rotation d-q reference frame. A monotonic transfer module receives the two-phase quantities, and generates a monotonic phase error signal which is monotonic when a phase difference between the multi-phase reference signal and the synchronized phase signal ranges from −180 degrees to 180 degrees. A regulator receives the monotonic phase error signal, and generates a synchronized rotation frequency. An integrator receives the synchronized rotation frequency, and generates the synchronized phase signal.
摘要翻译：锁相环电路包括用于接收锁相环电路的多相参考信号和同步相位信号的相位误差检测器，并且用于执行旋转变换以将多相参考信号转换为二相参考信号，同步旋转dq参考系的相位量。单调传递模块接收两相量，并且当多相参考信号和同步相位信号之间的相位差范围从-180度到180度时，产生单调的单调相位误差信号。调节器接收单调相位误差信号，并产生同步旋转频率。积分器接收同步旋转频率，并产生同步相位信号。

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